OUR ENVIRONMENT

12345678910
Across
  1. 4. The world of non-living organisms.
  2. 5. The system formed by the interaction of all living organisms with each other and with the chemical and physical factors of environment.
  3. 8. The thin layer of air around the earth.
  4. 9. The solid crust or the hard top layer of the earth
  5. 10. Basic life support system.
Down
  1. 1. The world of living organisms.
  2. 2. The domain of water.
  3. 3. The force that holds the atmosphere around it.
  4. 6. It protects us from the UV rays of sun.
  5. 7. Who modifies the natural environment?